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<div class="title">bigint.h</div>  </div>
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<a href="bigint_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="preprocessor">#include &lt;gmp.h&gt;</span> <span class="comment">//GNU Multiple Precision library</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;</div>
<div class="line"><a name="l00004"></a><span class="lineno"><a class="line" href="bigint_8h.html#a86e1969b50e55e5d506233078ca0fa4c">    4</a></span>&#160;<span class="preprocessor">#define READ_SIZE 8</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="preprocessor"></span><span class="comment">//import-export constant values</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"><a class="line" href="bigint_8h.html#a1a73994c0f34d7160878e5307f221f60">    6</a></span>&#160;<span class="preprocessor">#define WORD_COUNT 8</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"><a class="line" href="bigint_8h.html#a510f24e62cc4f39f2bc257ceaa9fcfa9">    7</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define WORD_ORDER 1 //1 = most significant byte first</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"><a class="line" href="bigint_8h.html#a92ed8507d1cd2331ad09275c5c4c1c89">    8</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define WORD_SIZE 4</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"><a class="line" href="bigint_8h.html#a4848daa5cfb57d9748c39c5633fcb1f4">    9</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define ENDIAN 1 // 1 = most significant byte first</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"><a class="line" href="bigint_8h.html#ab6f583706dd0b9e2603fab90b2cf21af">   10</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NAILS 0</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="keywordtype">void</span> <a class="code" href="bigint_8h.html#a9dfcd50cc9f5d315af96654a7817e3bc">get_seed</a>(mpz_t ret, mpz_t bigger_than);</div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;</div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="keywordtype">void</span> <a class="code" href="bigint_8h.html#a6fc1c27c4eff5f372a44e1264aad6f73">get_prime</a>(mpz_t ret, mpz_t bigger_than);</div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;</div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="keywordtype">void</span> <a class="code" href="bigint_8h.html#a9bceae70622bd0ea9dbce472fff5a5d5">get_rnd</a>(mpz_t ret);</div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;</div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="keywordtype">void</span> <a class="code" href="bigint_8h.html#a8a653d4c9eac902f3d26e54bedf1be8c">get_rnd_n</a> (mpz_t ret, <span class="keywordtype">int</span> read_size);</div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;</div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="keywordtype">void</span> <a class="code" href="bigint_8h.html#af52cd8b4682278b6ce4570d79d24c502">get_pow</a>(mpz_t ret, mpz_t base, mpz_t exp, mpz_t modulo);</div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;</div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="keywordtype">int</span> <a class="code" href="bigint_8h.html#a3f15839155112766660152150d96b4fd">get_inverse</a>(mpz_t ret, mpz_t op, mpz_t modulo);</div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;</div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="keywordtype">void</span> <a class="code" href="bigint_8h.html#a54e488fdca37118c33dd29386b5b2e7f">mpz_to_bytes</a>(<span class="keywordtype">char</span> * buffer, mpz_t number, <span class="keywordtype">size_t</span> * count);</div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="keywordtype">void</span> <a class="code" href="bigint_8h.html#a351a4bbdd4476151634cf3a5e2966630">bytes_to_mpz</a>(mpz_t number, <span class="keywordtype">char</span> * buffer);</div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="keywordtype">int</span> <a class="code" href="bigint_8h.html#a0e8bbdc21a84c26184b99cd801dddecc">mpz_2_bytes</a> (<span class="keywordtype">char</span> * buffer, mpz_t number, <span class="keywordtype">size_t</span> * count);</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="keywordtype">int</span> <a class="code" href="bigint_8h.html#af05770165fb84c71aa4949563713724d">bytes_2_mpz</a> (mpz_t number, <span class="keywordtype">char</span> * buffer, <span class="keywordtype">size_t</span> count);</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">int</span> <a class="code" href="bigint_8h.html#aff351045b7de9645261510d83aef9e0e">char2uli</a> (<span class="keyword">const</span> <span class="keywordtype">char</span> c);</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;<span class="comment">//convert a big integer into its modulo n representation</span></div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;<span class="keywordtype">void</span> <a class="code" href="bigint_8h.html#a118b67bb39caee74244b51d8d1152e81">get_mod</a>(mpz_t ret, mpz_t number, mpz_t modulo);</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;<span class="keywordtype">void</span> <a class="code" href="bigint_8h.html#a230d971e08fa0651e7a92170c7edd8dd">get_rnd_inv</a>(mpz_t rnd, mpz_t inv, mpz_t modulo);</div>
<div class="ttc" id="bigint_8h_html_a6fc1c27c4eff5f372a44e1264aad6f73"><div class="ttname"><a href="bigint_8h.html#a6fc1c27c4eff5f372a44e1264aad6f73">get_prime</a></div><div class="ttdeci">void get_prime(mpz_t ret, mpz_t bigger_than)</div><div class="ttdoc">ret is a prime number bigger than bigger_than </div><div class="ttdef"><b>Definition:</b> <a href="bigint_8c_source.html#l00026">bigint.c:26</a></div></div>
<div class="ttc" id="bigint_8h_html_a3f15839155112766660152150d96b4fd"><div class="ttname"><a href="bigint_8h.html#a3f15839155112766660152150d96b4fd">get_inverse</a></div><div class="ttdeci">int get_inverse(mpz_t ret, mpz_t op, mpz_t modulo)</div><div class="ttdoc">ret is the inverse of operand op modulo modulo </div><div class="ttdef"><b>Definition:</b> <a href="bigint_8c_source.html#l00073">bigint.c:73</a></div></div>
<div class="ttc" id="bigint_8h_html_a118b67bb39caee74244b51d8d1152e81"><div class="ttname"><a href="bigint_8h.html#a118b67bb39caee74244b51d8d1152e81">get_mod</a></div><div class="ttdeci">void get_mod(mpz_t ret, mpz_t number, mpz_t modulo)</div><div class="ttdef"><b>Definition:</b> <a href="bigint_8c_source.html#l00142">bigint.c:142</a></div></div>
<div class="ttc" id="bigint_8h_html_a8a653d4c9eac902f3d26e54bedf1be8c"><div class="ttname"><a href="bigint_8h.html#a8a653d4c9eac902f3d26e54bedf1be8c">get_rnd_n</a></div><div class="ttdeci">void get_rnd_n(mpz_t ret, int read_size)</div><div class="ttdoc">same as get_rnd, but specify how many bytes of urandom have to be read </div><div class="ttdef"><b>Definition:</b> <a href="bigint_8c_source.html#l00036">bigint.c:36</a></div></div>
<div class="ttc" id="bigint_8h_html_aff351045b7de9645261510d83aef9e0e"><div class="ttname"><a href="bigint_8h.html#aff351045b7de9645261510d83aef9e0e">char2uli</a></div><div class="ttdeci">unsigned long int char2uli(const char c)</div><div class="ttdoc">convert char into unsigned long int </div><div class="ttdef"><b>Definition:</b> <a href="bigint_8c_source.html#l00133">bigint.c:133</a></div></div>
<div class="ttc" id="bigint_8h_html_a0e8bbdc21a84c26184b99cd801dddecc"><div class="ttname"><a href="bigint_8h.html#a0e8bbdc21a84c26184b99cd801dddecc">mpz_2_bytes</a></div><div class="ttdeci">int mpz_2_bytes(char *buffer, mpz_t number, size_t *count)</div><div class="ttdoc">custom edition of mpz_to_bytes </div><div class="ttdef"><b>Definition:</b> <a href="bigint_8c_source.html#l00088">bigint.c:88</a></div></div>
<div class="ttc" id="bigint_8h_html_af05770165fb84c71aa4949563713724d"><div class="ttname"><a href="bigint_8h.html#af05770165fb84c71aa4949563713724d">bytes_2_mpz</a></div><div class="ttdeci">int bytes_2_mpz(mpz_t number, char *buffer, size_t count)</div><div class="ttdoc">custom edition of bytes_to_mpz </div><div class="ttdef"><b>Definition:</b> <a href="bigint_8c_source.html#l00114">bigint.c:114</a></div></div>
<div class="ttc" id="bigint_8h_html_a230d971e08fa0651e7a92170c7edd8dd"><div class="ttname"><a href="bigint_8h.html#a230d971e08fa0651e7a92170c7edd8dd">get_rnd_inv</a></div><div class="ttdeci">void get_rnd_inv(mpz_t rnd, mpz_t inv, mpz_t modulo)</div><div class="ttdoc">get a random number rnd and its inverse inv modulo modulo </div><div class="ttdef"><b>Definition:</b> <a href="bigint_8c_source.html#l00149">bigint.c:149</a></div></div>
<div class="ttc" id="bigint_8h_html_af52cd8b4682278b6ce4570d79d24c502"><div class="ttname"><a href="bigint_8h.html#af52cd8b4682278b6ce4570d79d24c502">get_pow</a></div><div class="ttdeci">void get_pow(mpz_t ret, mpz_t base, mpz_t exp, mpz_t modulo)</div><div class="ttdoc">ret is the result of the xponentiation of base to exp modulo modulo </div><div class="ttdef"><b>Definition:</b> <a href="bigint_8c_source.html#l00067">bigint.c:67</a></div></div>
<div class="ttc" id="bigint_8h_html_a351a4bbdd4476151634cf3a5e2966630"><div class="ttname"><a href="bigint_8h.html#a351a4bbdd4476151634cf3a5e2966630">bytes_to_mpz</a></div><div class="ttdeci">void bytes_to_mpz(mpz_t number, char *buffer)</div><div class="ttdoc">convert bytes of buffer into integer, stored in number </div><div class="ttdef"><b>Definition:</b> <a href="bigint_8c_source.html#l00083">bigint.c:83</a></div></div>
<div class="ttc" id="bigint_8h_html_a9dfcd50cc9f5d315af96654a7817e3bc"><div class="ttname"><a href="bigint_8h.html#a9dfcd50cc9f5d315af96654a7817e3bc">get_seed</a></div><div class="ttdeci">void get_seed(mpz_t ret, mpz_t bigger_than)</div><div class="ttdoc">ret is a random number bigger than bigger_than </div><div class="ttdef"><b>Definition:</b> <a href="bigint_8c_source.html#l00008">bigint.c:8</a></div></div>
<div class="ttc" id="bigint_8h_html_a9bceae70622bd0ea9dbce472fff5a5d5"><div class="ttname"><a href="bigint_8h.html#a9bceae70622bd0ea9dbce472fff5a5d5">get_rnd</a></div><div class="ttdeci">void get_rnd(mpz_t ret)</div><div class="ttdoc">ret is a random number generated from /dev/urandom </div><div class="ttdef"><b>Definition:</b> <a href="bigint_8c_source.html#l00061">bigint.c:61</a></div></div>
<div class="ttc" id="bigint_8h_html_a54e488fdca37118c33dd29386b5b2e7f"><div class="ttname"><a href="bigint_8h.html#a54e488fdca37118c33dd29386b5b2e7f">mpz_to_bytes</a></div><div class="ttdeci">void mpz_to_bytes(char *buffer, mpz_t number, size_t *count)</div><div class="ttdoc">convert integer number to count plain bytes stored in buffer </div><div class="ttdef"><b>Definition:</b> <a href="bigint_8c_source.html#l00079">bigint.c:79</a></div></div>
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